[development] Upgrade system

[Neil Drumm]

Gordon Heydon wrote:
> What happens is that when you install a new module is 2 things happen.
> 
> 1. all the .install files are included and {module name}_update_n, where n is 
>    considered the schema version is inserted into the system table.
> 2. the {module name}_install() is called where if you want you can create the database 
>    tables.

Yep, thats exactly right.

> I still haven't really found out much information on the 4.7 update
> system which this is hooked into, hopefully the documentation team has
> something that they are putting together.

Go ahead and throw it in whereever it fits. There is some incoming hook 
documentation over at http://drupal.org/node/48722.

-- 
Neil Drumm
http://delocalizedham.com/